import { Addon, Option, UserData, Resource } from '../db/index.js';
import { baseOptions, Preset } from './preset.js';
import { Env } from '../utils/index.js';
import { constants, ServiceId } from '../utils/index.js';
import { StreamParser } from '../parser/index.js';
import { StremThruPreset } from './stremthru.js';

class CometStreamParser extends StreamParser {
  get errorRegexes(): { pattern: RegExp; message: string }[] | undefined {
    return [
      ...(super.errorRegexes || []),
      {
        pattern: /Scraping in progress by another instance\./i,
        message: 'Scraping in progress by another instance',
      },
    ];
  }
  override applyUrlModifications(url: string | undefined): string | undefined {
    if (!url) {
      return url;
    }
    if (
      Env.FORCE_COMET_HOSTNAME !== undefined ||
      Env.FORCE_COMET_PORT !== undefined ||
      Env.FORCE_COMET_PROTOCOL !== undefined
    ) {
      // modify the URL according to settings, needed when using a local URL for requests but a public stream URL is needed.
      const urlObj = new URL(url);

      if (Env.FORCE_COMET_PROTOCOL !== undefined) {
        urlObj.protocol = Env.FORCE_COMET_PROTOCOL;
      }
      if (Env.FORCE_COMET_PORT !== undefined) {
        urlObj.port = Env.FORCE_COMET_PORT.toString();
      }
      if (Env.FORCE_COMET_HOSTNAME !== undefined) {
        urlObj.hostname = Env.FORCE_COMET_HOSTNAME;
      }
      return urlObj.toString();
    }
    return super.applyUrlModifications(url);
  }
}

export class CometPreset extends StremThruPreset {
  static override getParser(): typeof StreamParser {
    return CometStreamParser;
  }

  static override get METADATA() {
    const supportedServices: ServiceId[] = [
      constants.REALDEBRID_SERVICE,
      constants.PREMIUMIZE_SERVICE,
      constants.ALLDEBRID_SERVICE,
      constants.TORBOX_SERVICE,
      constants.EASYDEBRID_SERVICE,
      constants.DEBRIDER_SERVICE,
      constants.DEBRIDLINK_SERVICE,
      constants.OFFCLOUD_SERVICE,
      constants.PIKPAK_SERVICE,
    ];

    const supportedResources = [constants.STREAM_RESOURCE];

    const options: Option[] = [
      ...baseOptions(
        'Comet',
        supportedResources,
        Env.DEFAULT_COMET_TIMEOUT,
        Env.COMET_URL
      ),
      {
        id: 'includeP2P',
        name: 'Include P2P',
        description: 'Include P2P results, even if a debrid service is enabled',
        type: 'boolean',
        default: false,
        showInSimpleMode: false,
      },
      {
        id: 'removeTrash',
        name: 'Remove Trash',
        description:
          'Remove all trash from results (Adult Content, CAM, Clean Audio, PDTV, R5, Screener, Size, Telecine and Telesync)',
        type: 'boolean',
        default: true,
        showInSimpleMode: false,
      },
      {
        id: 'services',
        name: 'Services',
        showInSimpleMode: false,
        description:
          'Optionally override the services that are used. If not specified, then the services that are enabled and supported will be used.',
        type: 'multi-select',
        required: false,
        options: supportedServices.map((service) => ({
          value: service,
          label: constants.SERVICE_DETAILS[service].name,
        })),
        default: undefined,
        emptyIsUndefined: true,
      },
      {
        id: 'mediaTypes',
        name: 'Media Types',
        description:
          'Limits this addon to the selected media types for streams. For example, selecting "Movie" means this addon will only be used for movie streams (if the addon supports them). Leave empty to allow all.',
        type: 'multi-select',
        required: false,
        showInSimpleMode: false,
        options: [
          { label: 'Movie', value: 'movie' },
          { label: 'Series', value: 'series' },
          { label: 'Anime', value: 'anime' },
        ],
        default: [],
      },
      {
        id: 'socials',
        name: '',
        description: '',
        type: 'socials',
        socials: [
          {
            id: 'github',
            url: 'https://github.com/g0ldyy/comet',
          },
          {
            id: 'ko-fi',
            url: 'https://ko-fi.com/g0ldyy',
          },
        ],
      },
    ];

    return {
      ID: 'comet',
      NAME: 'Comet',
      LOGO: 'https://i.imgur.com/jmVoVMu.jpeg',
      URL: Env.COMET_URL[0],
      TIMEOUT: Env.DEFAULT_COMET_TIMEOUT || Env.DEFAULT_TIMEOUT,
      USER_AGENT: Env.DEFAULT_COMET_USER_AGENT || Env.DEFAULT_USER_AGENT,
      SUPPORTED_SERVICES: supportedServices,
      DESCRIPTION: "Stremio's fastest Torrent/Debrid addon",
      OPTIONS: options,
      SUPPORTED_STREAM_TYPES: [
        constants.P2P_STREAM_TYPE,
        constants.DEBRID_STREAM_TYPE,
      ],
      SUPPORTED_RESOURCES: supportedResources,
    };
  }

  static async generateAddons(
    userData: UserData,
    options: Record<string, any>
  ): Promise<Addon[]> {
    // url can either be something like https://torrentio.com/ or it can be a custom manifest url.
    // if it is a custom manifest url, return a single addon with the custom manifest url.
    if (options?.url?.endsWith('/manifest.json')) {
      return [this.generateAddon(userData, options, undefined)];
    }

    const usableServices = this.getUsableServices(userData, options.services);
    // if no services are usable, use p2p
    if (!usableServices || usableServices.length === 0) {
      return [this.generateAddon(userData, options, undefined)];
    }

    let addons = usableServices.map((service) =>
      this.generateAddon(userData, options, service.id)
    );

    if (options.includeP2P) {
      addons.push(this.generateAddon(userData, options, undefined));
    }

    return addons;
  }

  private static generateAddon(
    userData: UserData,
    options: Record<string, any>,
    serviceId?: ServiceId
  ): Addon {
    return {
      name: options.name || this.METADATA.NAME,
      identifier: serviceId
        ? `${constants.SERVICE_DETAILS[serviceId].shortName}`
        : options.url?.endsWith('/manifest.json')
          ? undefined
          : 'p2p',
      manifestUrl: this.generateManifestUrl(userData, options, serviceId),
      enabled: true,
      mediaTypes: options.mediaTypes || [],
      resources: options.resources || this.METADATA.SUPPORTED_RESOURCES,
      timeout: options.timeout || this.METADATA.TIMEOUT,
      preset: {
        id: '',
        type: this.METADATA.ID,
        options: options,
      },
      headers: {
        'User-Agent': this.METADATA.USER_AGENT,
      },
    };
  }

  private static generateManifestUrl(
    userData: UserData,
    options: Record<string, any>,
    serviceId: ServiceId | undefined
  ) {
    let url = options.url || this.METADATA.URL;
    if (url.endsWith('/manifest.json')) {
      return url;
    }
    url = url.replace(/\/$/, '');
    const configString = this.base64EncodeJSON({
      maxResultsPerResolution: 0,
      maxSize: 0,
      cachedOnly: false,
      removeTrash: options.removeTrash ?? true,
      resultFormat: ['all'],
      debridService: serviceId || 'torrent',
      debridApiKey: serviceId
        ? this.getServiceCredential(serviceId, userData)
        : '',
      debridStreamProxyPassword: '',
      languages: { required: [], exclude: [], preferred: [] },
      resolutions: {},
      options: {
        remove_ranks_under: -10000000000,
        allow_english_in_languages: false,
        remove_unknown_languages: false,
      },
    });

    return `${url}${configString ? '/' + configString : ''}/manifest.json`;
  }
}
